KHRONOS (+/- Galileo)

TODO:

• Add start animation (info, copywrite, fake name, url pixel?)
• Add I/O - deviation correction option (accuracy realtime vs speed = 10 vs 5 second hold option)
• Blink LEDs custom
• Swtiching RGB all blink + changing UI sets LED to RED || GREEN (after 5 / 10 sec)
• Charging LED flashes blue
• Data +/i wires to USB charger
• VREF jumper (when charging)
• Quiesent current small consumer or diode?
• Show BATT V as X/X in corner alternating with icon
• Lower LED power

DONE:

• Galileo mode ENABLED w/ Xfancy animation
• Add with charge / overdischarge / boost to 5V circuit
• Add Li-ION battery
• Circuit & cables
• Case
• Adapt
• RGB LED

1. LiquidCrystal Library - Hello World circuit

LiquidCrystal lcd(RS, E, D4, D5, D6, D7); + VCC - GND
LiquidCrystal lcd_(12, 11, 5, 4, 3, 2);

• LCD RS pin to digital pin 12
• LCD Enable pin to digital pin 11
• LCD D4 pin to digital pin 5
• LCD D5 pin to digital pin 4
• LCD D6 pin to digital pin 3
• LCD D7 pin to digital pin 2
• LCD R/W pin to ground
• LCD VSS pin to ground
• LCD VCC pin to 5V
• 10K pott
• ends to +5V and ground
• wiper to LCD VO pin (pin 3)

Note http://www.arduino.cc/en/Tutorial/LiquidCrystal

2. Beitian dual BN-220 GPS info

PINOUT (Left to Right) with 2 holes face up, antena faced to the ground:

1. GND
2. GPS TX
3. GPS RX
4. (3.0V - 5.5V, typical: 5V)

3. Magnetic switch

1. GND
2. A0 = const int REED_PIN = A0;

4. RGB LED + INTERNAL LED

Internal led: LED_BUILTIN
RGB led:

// RGB LED pins
const int LED_R_PIN = A1;
const int LED_G_PIN = A2;
const int LED_B_PIN = A3

5. VCC_BAT_ADC & VREF source

// ADC VCC BAT for Vumeter
const int ADC_VCC_BAT = A4

float v_bat = (float)5 * analogRead(ADC_VCC_BAT) / 1024; // 10 BIT int converted to float voltage